EP2938023A1

EP2938023A1 - Peer-to-peer service processing method and device

Info

Publication number: EP2938023A1
Application number: EP12890316.8A
Authority: EP
Inventors: Haifeng Duan
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2012-12-21
Filing date: 2012-12-21
Publication date: 2015-10-28
Anticipated expiration: 2032-12-21
Also published as: CN103229484A; RU2015129523A; EP2938023B1; RU2630182C2; WO2014094285A1; CN103229484B; EP2938023A4

Abstract

The present invention discloses a method for peer to peer service processing and a device. The method includes: receiving, by a network side communication network, a service packet, and determining that the service packet is a peer to peer service packet according to a fact that addresses of a source end and an opposite end of the service packet are addresses in a terminal address pool; and identifying, by the network side communication network, transmission position information of the peer to peer service packet, and performing control processing or charging processing on one or both of the source end and the opposite end aiming at the peer to peer service packet, according to the transmission position information, wherein the transmission position information comprises information of a physical port, a virtual local area network or a tunnel which transmits the peer to peer service packet. The method for peer to peer service processing and the device of the embodiments of the present invention may improve the flexibility of performing control processing or charging processing on users of a peer to peer service.

Description

TECHNICAL FIELD

The present invention relates to a field of communications, and particularly, to peer to peer service processing technologies.

BACKGROUND

In a data service network, if several terminal users initiate a peer to peer service (P2P: Peer To Peer, peer to peer), for example, a user A and a user B both activate a data service through a gateway general packet radio service (General Packet Radio Service, referred to as "GPRS") support node (Gateway GPRS Support Node, referred to as "GGSN") and initiate a peer to peer download service, control processing or charging processing could not be performed on a receiver of this peer to peer service packet currently, and control processing or charging processing may be only performed on an initiator of the packet. For example, A sends a packet to B, then only A is controlled (including access control, bandwidth control, etc.) and charged (including traffic charging, duration charging or pay-per-view, etc.). In short, a solution of an existing NAS device for control processing or charging processing on users of the peer to peer service is not flexible enough.

SUMMARY

Embodiments of the present invention provide a method for peer to peer service processing, a network side communication network, an NAS device and a bidirectional processing apparatus for a peer to peer service, which improve the flexibility of performing control processing or charging processing on users of a peer to peer service.
In a first aspect, a method for peer to peer service processing is provided, including: receiving, by a network side communication network, a service packet, and determining that the service packet is a peer to peer service packet according to a fact that addresses of a source end and an opposite end of the service packet are addresses in a terminal address pool; and identifying, by the network side communication network, transmission position information of the peer to peer service packet, and performing control processing or charging processing on one or both of the source end and the opposite end aiming at the peer to peer service packet, according to the transmission position information, wherein the transmission position information includes information of a physical port, a virtual local area network or a tunnel which transmits the peer to peer service packet.
In a first possible implementation manner, the network side communication network includes a network access server NAS device and a bidirectional processing apparatus; the receiving, by the network side communication network, the service packet, and the determining that the service packet is the peer to peer service packet according to the fact that the addresses of the source end and the opposite end of the service packet are the addresses in the terminal address pool, include: receiving, by the NAS device, the service packet, and determining that the service packet is the peer to peer service packet according to the fact that the addresses of the source end and the opposite end of the service packet are the addresses in the terminal address pool; the identifying, by the network side communication network, the transmission position information of the peer to peer service packet, and the performing control processing or charging processing on one or both of the source end and the opposite end aiming at the peer to peer service packet, according to the transmission position information, include: identifying, by the NAS device, that the transmission position information is first position information, determining that the peer to peer service packet is from a terminal side, and forwarding the peer to peer service packet to the bidirectional processing apparatus; receiving, by the bidirectional processing apparatus, the peer to peer service packet forwarded by the NAS device, identifying that the transmission position information is second position information, determining that the peer to peer service packet enters the bidirectional processing apparatus for the first time, performing control processing or charging processing on the source end aiming at the peer to peer service packet, and then forwarding the peer to peer service packet to the NAS device; receiving, by the NAS device, the peer to peer service packet forwarded by the bidirectional processing apparatus, identifying that the transmission position information is third position information, determining that the source end has been performed with control processing or charging processing, and forwarding the peer to peer service packet to the bidirectional processing apparatus again; receiving, by the bidirectional processing apparatus, the peer to peer service packet forwarded by the NAS device, identifying that the transmission position information is fourth position information, determining that the peer to peer service packet enters the bidirectional processing apparatus for the second time, performing control processing or charging processing on the opposite end aiming at the peer to peer service packet, and then forwarding the peer to peer service packet to the NAS device; receiving, by the NAS device, the peer to peer service packet forwarded by the bidirectional processing apparatus, identifying that the transmission position information is fifth position information, determining that the source end and the opposite end have been performed with control processing or charging processing, and sending the peer to peer service packet to the opposite end.
In a second possible implementation manner, the network side communication network includes an NAS device, a network device and a bidirectional processing apparatus; the receiving, by the network side communication network, the service packet, and the determining that the service packet is the peer to peer service packet according to the fact that the addresses of the source end and the opposite end of the service packet are the addresses in the terminal address pool, include: receiving, by the NAS device, the service packet, and determining that the service packet is the peer to peer service packet according to the fact that the addresses of the source end and the opposite end of the service packet are the addresses in the terminal address pool; the identifying, by the network side communication network, the transmission position information of the peer to peer service packet, and the performing control processing or charging processing on one or both of the source end and the opposite end aiming at the peer to peer service packet, according to the transmission position information, include: identifying, by the NAS device, that the transmission position information is first position information, determining that the peer to peer service packet is from a terminal side, and forwarding the peer to peer service packet to the network device; receiving, by the network device, the peer to peer service packet forwarded by the NAS device, identifying that the transmission position information is second position information, determining that the peer to peer service packet is from the NAS device, and forwarding the peer to peer service packet to the bidirectional processing apparatus; receiving, by the bidirectional processing apparatus, the peer to peer service packet forwarded by the network device, identifying that the transmission position information is third position information, determining that the peer to peer service packet enters the bidirectional processing apparatus for the first time, performing control processing or charging processing on the source end aiming at the peer to peer service packet, and then forwarding the peer to peer service packet to the network device; receiving, by the network device, the peer to peer service packet forwarded by the bidirectional processing apparatus, identifying that the transmission position information is fourth position information, determining that the source end has been performed with control processing or charging processing, and forwarding the peer to peer service packet to the bidirectional processing apparatus again; receiving, by the bidirectional processing apparatus, the peer to peer service packet forwarded by the network device, identifying that the transmission position information is fifth position information, determining that the peer to peer service packet enters the bidirectional processing apparatus for the second time, performing control processing or charging processing on the opposite end aiming at the peer to peer service packet, and then forwarding the peer to peer service packet to the network device; receiving, by the network device, the peer to peer service packet forwarded by the bidirectional processing apparatus, identifying that the transmission position information is sixth position information, determining that the source end and the opposite end have been performed with control processing or charging processing, and forwarding the peer to peer service packet to the NAS device; receiving, by the NAS device, the peer to peer service packet forwarded by the network device, identifying that the transmission position information is seventh position information, determining that the peer to peer service packet is from the network device, and sending the peer to peer service packet to the opposite end.
In a third possible implementation manner, the network side communication network includes an NAS device; the performing, by the network side communication network, control processing or charging processing on one or both of the source end and the opposite end aiming at the peer to peer service packet, according to the transmission position information, includes: determining, by the NAS device, that the peer to peer service packet is from a terminal side according to the transmission position information, and performing control processing or charging processing on the source end aiming at the peer to peer service packet.
In a fourth possible implementation manner, in combination with the third possible implementation manner of the first aspect, the performing, by the network side communication network, control processing or charging processing on one or both of the source end and the opposite end aiming at the peer to peer service packet, according to the transmission position information, further includes: when determining that the address of the opposite end is an address managed by the NAS device, performing, by the NAS device, control processing or charging processing on the opposite end aiming at the peer to peer service packet, and then forwarding the peer to peer service packet to the opposite end, or when determining that the address of the opposite end is an address managed by another NAS device, forwarding the peer to peer service packet to the another NAS device.
In a fifth possible implementation manner, the network side communication network includes an NAS device; the performing, by the network side communication network, control processing or charging processing on one or both of the source end and the opposite end aiming at the peer to peer service packet, according to the transmission position information, includes: determining, by the NAS device, that the peer to peer service packet is from a network side according to the transmission position information, performing control processing or charging processing on the opposite end aiming at the peer to peer service packet, and then forwarding the peer to peer service packet to the opposite end.
In a second aspect, a network side communication network is provided, including: a network access server NAS device and a bidirectional processing apparatus, wherein the NAS device is in communication connection with the bidirectional processing apparatus; the NAS device is configured to receive a service packet, determine that the service packet is a peer to peer service packet according to a fact that addresses of a source end and an opposite end of the service packet are addresses in a terminal address pool, identify transmission position information of the peer to peer service packet, and forward the peer to peer service packet according to the transmission position information, wherein the transmission position information includes information of a physical port, a virtual local area network or a tunnel which transmits the peer to peer service packet; and the bidirectional processing apparatus is configured to identify the transmission position information, and perform control processing or charging processing on one or both of the source end and the opposite end aiming at the peer to peer service packet, according to the transmission position information.
In a first possible implementation manner, the NAS device is specifically configured to identify that the transmission position information is first position information, determine that the peer to peer service packet is from a terminal side, and forward the peer to peer service packet to the bidirectional processing apparatus, or receive the peer to peer service packet forwarded by the bidirectional processing apparatus, identify that the transmission position information is third position information, determine that the source end has been performed with control processing or charging processing, and forward the peer to peer service packet to the bidirectional processing apparatus again, or receive the peer to peer service packet forwarded by the bidirectional processing apparatus, identify that the transmission position information is fifth position information, determine that the source end and the opposite end have been performed with control processing or charging processing, and send the peer to peer service packet to the opposite end; the bidirectional processing apparatus includes: a receiving module, configured to receive the peer to peer service packet forwarded by the NAS device; an identifying module, configured to identify that the transmission position information is second position information, determine that the peer to peer service packet enters the bidirectional processing apparatus for the first time, and trigger a first sub-processing module of the bidirectional processing apparatus, or identify that the transmission position information is fourth position information, determine that the peer to peer service packet enters the bidirectional processing apparatus for the second time, and trigger a second sub-processing module of the bidirectional processing apparatus; the first sub-processing module, configured to perform control processing or charging processing on the source end aiming at the peer to peer service packet, and then forward the peer to peer service packet to the NAS device; the second sub-processing module, configured to perform control processing or charging processing on the opposite end aiming at the peer to peer service packet, and then forward the peer to peer service packet to the NAS device.
In a third aspect, a network side communication network is provided, including: a network access server NAS device, a network device and a bidirectional processing apparatus, wherein the bidirectional processing apparatus is in communication connection with the NAS device through the network device; the NAS device is configured to receive a service packet, determine that the service packet is a peer to peer service packet according to a fact that addresses of a source end and an opposite end of the service packet are addresses in a terminal address pool, identify transmission position information of the peer to peer service packet, and forward the peer to peer service packet according to the transmission position information, wherein the transmission position information includes information of a physical port, a virtual local area network or a tunnel which transmits the peer to peer service packet; the network device is configured to identify the transmission position information and forward the peer to peer service packet according to the transmission position information; and the bidirectional processing apparatus is configured to identify the transmission position information, and perform control processing or charging processing on one or both of the source end and the opposite end aiming at the peer to peer service packet, according to the transmission position information.
In a first possible implementation manner, the NAS device is specifically configured to identify that the transmission position information is first position information, determine that the peer to peer service packet is from a terminal side, and forward the peer to peer service packet to the network device, or receive the peer to peer service packet forwarded by the network device, identify that the transmission position information is seventh position information, determine that the peer to peer service packet is from the network device and send the peer to peer service packet to the opposite end; the network device is specifically configured to receive the peer to peer service packet forwarded by the NAS device, identify that the transmission position information is second position information, determine that the peer to peer service packet is from the NAS device, and forward the peer to peer service packet to the bidirectional processing apparatus, or receive the peer to peer service packet forwarded by the bidirectional processing apparatus, identify that the transmission position information is fourth position information, determine that the source end has been performed with control processing or charging processing, and forward the peer to peer service packet to the bidirectional processing apparatus again, or receive the peer to peer service packet forwarded by the bidirectional processing apparatus, identify that the transmission position information is sixth position information, determine that the source end and the opposite end have been performed with control processing or charging processing, and forward the peer to peer service packet to the NAS device; the bidirectional processing apparatus includes: a receiving module, configured to receive the peer to peer service packet forwarded by the network device; an identifying module, configured to identify that the transmission position information is third position information, determine that the peer to peer service packet enters the bidirectional processing apparatus for the first time, and trigger a first sub-processing module of the bidirectional processing apparatus, or identify that the transmission position information is fifth position information, determine that the peer to peer service packet enters the bidirectional processing apparatus for the second time, and trigger a second sub-processing module of the bidirectional processing apparatus; the first sub-processing module, configured to perform control processing or charging processing on the source end aiming at the peer to peer service packet, and then forward the peer to peer service packet to the network device; the second sub-processing module, configured to perform control processing or charging processing on the opposite end aiming at the peer to peer service packet, and then forward the peer to peer service packet to the network device.
In a fourth aspect, a network access server NAS device is provided, including: a service packet processing module, configured to receive a service packet, and determine that the service packet is a peer to peer service packet according to a fact that addresses of a source end and an opposite end of the service packet are addresses in a terminal address pool; an identifying module, configured to identify transmission position information of the peer to peer service packet, wherein the transmission position information includes information of a physical port, a virtual local area network or a tunnel which transmits the peer to peer service packet; and a processing module, configured to perform control processing or charging processing on one or both of the source end and the opposite end aiming at the peer to peer service packet, according to the transmission position information identified by the identifying module.
In a first possible implementation manner, the processing module is specifically configured to determine that the peer to peer service packet is from a terminal side according to the transmission position information, and perform control processing or charging processing on the source end aiming at the peer to peer service packet.
In a second possible implementation manner, in combination with the first possible implementation manner of the fourth aspect, the processing module is specifically configured to, when determining that the address of the opposite end is an address managed by the NAS device, perform control processing or charging processing on the opposite end aiming at the peer to peer service packet, and then forward the peer to peer service packet to the opposite end, or when determining that the address of the opposite end is an address managed by another NAS device, forward the peer to peer service packet to the another NAS device.
In a third possible implementation manner, the processing module is specifically configured to determine that the peer to peer service packet is from a network side according to the transmission position information, perform control processing or charging processing on the opposite end aiming at the peer to peer service packet, and then forward the peer to peer service packet to the opposite end.
In a fifth aspect, a bidirectional processing apparatus for a peer to peer service is provided, including: a receiving module, configured to receive a peer to peer service packet forwarded by a network side device; an identifying module, configured to identify transmission position information of the peer to peer service packet according to the peer to peer service packet received by the receiving module, wherein the transmission position information includes information of a physical port, a virtual local area network or a tunnel which transmits the peer to peer service packet; and a processing module, configured to perform control processing or charging processing on one or both of a source end and an opposite end aiming at the peer to peer service packet, according to the transmission position information identified by the identifying module, and then forward the peer to peer service packet to the network side device.
In a first possible implementation manner, the identifying module is specifically configured to identify the transmission position information according to the peer to peer service packet received by the receiving module, determine that the peer to peer service packet enters the bidirectional processing apparatus for the first time, and trigger a first sub-processing module in the processing module, or identify the transmission position information according to the peer to peer service packet received by the receiving module, determine that the peer to peer service packet enters the bidirectional processing apparatus for the second time, and trigger a second sub-processing module in the processing module; the processing module specifically includes: the first sub-processing module, configured to perform control processing or charging processing on the source end aiming at the peer to peer service packet, and then forward the peer to peer service packet to the network side device; the second sub-processing module, configured to perform control processing or charging processing on the opposite end aiming at the peer to peer service packet, and then forward the peer to peer service packet to the network side device.
In a second possible implementation manner, in combination with the fifth aspect or the first possible implementation manner of the fifth aspect, the bidirectional processing apparatus is located in a network access server NAS device and is in communication connection with a service packet processing module in the NAS device, and the network side device is the service packet processing module in the NAS device.
In a third possible implementation manner, in combination with the fifth aspect or the first possible implementation manner of the fifth aspect, the bidirectional processing apparatus is in communication connection with a NAS device, and the network side device is the NAS device.
In a fourth possible implementation manner, in combination with the fifth aspect or the first possible implementation manner of the fifth aspect, the bidirectional processing apparatus is in communication connection with a NAS device through a network device, and the network side device is the network device.
Based on the above-mentioned technical solutions, in the embodiments of the present invention, by identifying the transmission position information of the peer to peer service packet, and performing control processing or charging processing on one or both of the source end and the opposite end aiming at the peer to peer service packet, according to the transmission position information, the flexibility of performing control processing or charging processing on users of a peer to peer service may be improved.

BRIEF DESCRIPTION OF DRAWINGS

To illustrate technical solutions in the embodiments of the present invention more clearly, a brief introduction on the accompanying drawings which are needed in the embodiments of the present invention is given below. Apparently, the accompanying drawings in the description below are merely some of the embodiments of the present invention, based on which other drawings may be obtained by those of ordinary skill in the art without any creative efforts.

FIG. 1a, FIG. 1b and FIG. 1c are schematic diagrams of system architectures of a data service network according to embodiments of the present invention.
FIG. 2 is a schematic flowchart of a method for peer to peer service processing according to an embodiment of the present invention.
FIG. 3 is another schematic flowchart of a method for peer to peer service processing according to an embodiment of the present invention.
FIG. 4 is an interactive schematic diagram of a method for peer to peer service processing according to an embodiment of the present invention.
FIG. 5A and FIG. 5B are another schematic flowchart of a method for peer to peer service processing according to an embodiment of the present invention.
FIG. 6 is another interactive schematic diagram of a method for peer to peer service processing according to an embodiment of the present invention.
FIG. 7 is a schematic block diagram of a network side communication network according to an embodiment of the present invention.
FIG. 8 is a schematic block diagram of a network side communication network according to another embodiment of the present invention.
FIG. 9 is a schematic block diagram of an NAS device according to an embodiment of the present invention.
FIG. 10 is a schematic block diagram of a bidirectional processing apparatus according to an embodiment of the present invention.

DESCRIPTION OF EMBODIMENTS

A clear and complete description of technical solutions in the embodiments of the present invention will be given below, in combination with the accompanying drawings in the embodiments of the present invention. Apparently, the embodiments described are merely a part, but not all, of the embodiments of the present invention. All of other embodiments, obtained by those of ordinary skill in the art based on the embodiments of the present invention without any creative efforts, fall into the protection scope of the present invention.
FIG. 1a, FIG. 1b and FIG. 1c are schematic diagrams of system architectures of a data service network in implementations. In the data service network, a user activates a data service and receives the data service by means of a network access server (referred to as NAS device, Network Access Server), for example, a broadband remote access server (Broadband Remote Access Server, referred to as "BRAS"), a gateway GPRS support node (gateway GPRS support node, referred to as "GGSN") and a packet data serving node (Packet Data Serving Node, referred to as "PDSN").
In the embodiments of the present invention, charging processing or control processing on both sides, namely, a source end and an opposite end of a peer to peer service may be performed by providing a new NAS device (including a bidirectional processing apparatus, see FIG. 1a), or deploying a bidirectional processing apparatus (see FIG. 1b and FIG. 1c) in communication connection with the NAS device. In FIG. 1b, the NAS device may be in direct communication connection with the bidirectional processing apparatus; see FIG. 1c, a network device, for example, a switch or a router, may also be deployed between the NAS device and the bidirectional processing apparatus. This is to say, in the embodiments of the present invention, a device forwarding a packet to the bidirectional processing apparatus may be the NAS device and may also be the network device deployed between the NAS device and the bidirectional processing apparatus.
In order to make solutions clear, a system formed by such network side devices as the NAS device, the bidirectional processing apparatus, the network device and a data service platform mentioned above is called as a network side communication network.
FIG. 2 is a schematic flowchart of a method 100 for peer to peer service processing according to an embodiment of the present invention. As shown in FIG. 2, the method 100 includes:

S110, a network side communication network receives a service packet, and determines that the service packet is a peer to peer service packet according to a fact that addresses of a source end and an opposite end of the service packet are addresses in a terminal address pool;
S120, the network side communication network identifies transmission position information of the peer to peer service packet, and performs control processing or charging processing on one or both of the source end and the opposite end aiming at the peer to peer service packet, according to the transmission position information, wherein the transmission position information includes information of a physical port, a virtual local area network or a tunnel which transmits the peer to peer service packet.

In the embodiments of the present invention, the transmission position information refers to a position of a communication network passed by the service packet in a communication transmission process, and should not constitute any limit to the embodiments of the present invention. In the network side communication network, different identifiers are allocated to positions passed by the service packet in the transmission process, in order to enable a device receiving the service packet in the network to determine the previous hop network device of the service packet by use of these identifiers; further, the device may determine whether to perform control processing or charging processing on one or both of the source end and the opposite end aiming at the peer to peer service packet, according to the previous hop network device of the service packet and in combination with a related control and charging policy.
The above-mentioned transmission position information may be information of a physical port, a virtual local area network (Virtual Local Area Network, referred to as "VLAN"), for example, an identifier of VLAN, VALAN ID, or a tunnel (Tunnel), for example, an identifier of the tunnel, Tunnel ID, which transmits the peer to peer service packet. More specifically, the VLAN information is carried in a data packet, and the physical port information and the tunnel information are identified and distinguished through connected physical links. For convenience of understanding, the physical port refers to a communication network port having a physical significance, for example, an Ethernet interface or an optical fiber interface receiving the service packet; the VLAN refers to a virtual local area network composed of a network device receiving the service packet and a network device sending the service packet, and is generally distinguished according to VLAN ID, in particular, identifiers allocated to an uplink VLAN and a downlink VLAN are different, in this way, transmission directions of the service packet may be distinguished; the Tunnel refers to information of a tunnel receiving the service packet, and is generally distinguished by Tunnel ID in the network device.
Those skilled in the art may understand that, in the above-mentioned control processing or charging processing course, reference information at least includes a control and charging policy aiming at the source end, a control and charging policy aiming at the opposite end, or a policy acquired by comprehensive decision of the above-mentioned two control and charging policies. In various embodiments of the present invention, the control processing includes access control for allowing access or refusing access of services accessed by the user, or bandwidth control or the like; the charging processing includes traffic charging, duration charging or pay-per-view, or combined charging of the three manners on the services accessed by the user. In the embodiment of the present invention, the services accessed by the user may be controlled and charged, or only controlled or only charged, and this is not limited in the present invention.
The technical solutions of the embodiments of the present invention are not only applicable to a scenario that the peer to peer service are performed by two users (one source end to one opposite end), but also are applicable to a scenario that the peer to peer services are initiated among a plurality of users, because the packet interaction among the plurality of users may be converted into a plurality of both sides service interaction scenarios finally.
The method for peer to peer service processing of the embodiment of the present invention, by identifying the transmission position information of the peer to peer service packet, and performing control processing or charging processing on one or both of the source end and the opposite end aiming at the peer to peer service packet, according to the transmission position information, may achieve performing control processing or charging processing on both sides of a peer to peer service.
Specifically, the above-mentioned step 120 may include a variety of different processing: if determining that the peer to peer service packet is from a terminal side (source end) according to the transmission position information and no control processing or charging processing is performed, performing control or charging processing aiming at the source end according to the address of the source end in the service packet and in combination with the control and charging policy of the source end, and determining the next hop of the service packet (the next hop may be different according to different network architectures, may be a bidirectional processing apparatus itself in a NAS device, and may also be that the NAS device sends the service packet to the bidirectional processing apparatus); or,
if determining that the peer to peer service packet is from a network side according to the transmission position information and the control or charging processing aiming at the source end has been performed in combination with the control and charging policy of the source end merely, performing control and charging processing aiming at the opposite end according to the address of the opposite end in the service packet and in combination with the control and charging policy of the opposite end, and determining the next hop of the service packet; or,
if determining that the peer to peer service packet is from the network side according to the transmission position information and corresponding control and charging policies have been performed aiming at the source end and the opposite end, sending the service packet to the opposite end.
The above-mentioned different conditions may be decomposed or merged in various manners due to different network architectures, but the realization of the implementations of the present invention is not influenced on the whole. In short, by using the transmission position information as one of conditions to understand the processing progress, the transmission position or the flow stage of the service packet, the above-mentioned method achieves confirming and processing control and charging on the both sides of the peer to peer service in combination with related control and charging policies; compared with the method in the prior art in which only the address of the source end in the service packet is referred and related control and charging policy is combined, may further flexibly or efficiently realize complicated service control or charging.
Therefore, optionally, as an embodiment of the present invention, the network side communication network includes a network access server NAS device and a bidirectional processing apparatus, such as the network architecture shown in FIG. 1b;
in this network architecture, as shown in FIG. 3, S110 includes:

S111, the NAS device receives the service packet, and determines that the service packet is the peer to peer service packet according to the fact that the addresses of the source end and the opposite end of the service packet are the addresses in the terminal address pool;
S120 includes:
- S121, the NAS device identifies that the transmission position information is first position information, determines that the peer to peer service packet is from a terminal side, and forwards the peer to peer service packet to the bidirectional processing apparatus;
- S122, the bidirectional processing apparatus receives the peer to peer service packet forwarded by the NAS device, identifies that the transmission position information is second position information, determines that the peer to peer service packet enters the bidirectional processing apparatus for the first time, performs control processing or charging processing on the source end aiming at the peer to peer service packet, and then forwards the peer to peer service packet to the NAS device;
- S123, the NAS device receives the peer to peer service packet forwarded by the bidirectional processing apparatus, identifies that the transmission position information is third position information, determines that the source end has been performed with control processing or charging processing, and forwards the peer to peer service packet to the bidirectional processing apparatus again;
- S124, the bidirectional processing apparatus receives the peer to peer service packet forwarded by the NAS device, identifies that the transmission position information is fourth position information, determines that the peer to peer service packet enters the bidirectional processing apparatus for the second time, performs control processing or charging processing on the opposite end aiming at the peer to peer service packet, and then forwards the peer to peer service packet to the NAS device;
- S 125, the NAS device receives the peer to peer service packet forwarded by the bidirectional processing apparatus, identifies that the transmission position information is fifth position information, determines that the source end and the opposite end have been performed with control processing or charging processing, and sends the peer to peer service packet to the opposite end.

The embodiment of the present invention will be described below in detail in combination with FIG. 4. It should be noted that, this is only intended to help those of skilled in the art to better understand the embodiment of the present invention, rather than limiting the scope of the embodiment of the present invention.
FIG. 4 is a schematic diagram of a method in a communication system as shown in FIG. 1b. In the implementation, a bidirectional processing apparatus is deployed behind an NAS device for performing charging processing or control processing on a peer to peer service.
In the implementation, it is taken as an example that a user A initiates a peer to peer service call to a user B through the NAS device.
401, the NAS device receives (for example, receiving from a physical port 1, or VLAN1, or Tunnel 1) an internet protocol (Internet Protocol, referred to as "IP") data packet sent by A to B, and determines that the packet is a peer to peer service packet according to a fact that addresses of a source end and an opposite end of the packet are addresses in a terminal address pool.
402, the NAS device identifies that transmission position information is first position information (for example, identifying that the physical port receiving the packet is the physical port 1, or VALN ID carried in the packet is VLAN 1, or Tunnel receiving the packet is Tunnel 1), determines that the peer to peer service packet is from a terminal side, and forwards the peer to peer service packet to the bidirectional processing apparatus (for example, routing to the bidirectional processing apparatus through a physical port 2 or VLAN 2 or Tunnel 2).
403, the bidirectional processing apparatus receives (for example, receiving from a physical port 22 corresponding to the physical port 2, or VLAN 2, or Tunnel 2) the peer to peer service packet forwarded by the NAS device, identifies that the transmission position information is second position information, (for example, identifying that the physical port receiving the packet is the physical port 22, or VALN ID carried in the packet is VLAN 2, or Tunnel receiving the packet is Tunnel 2), determines that the peer to peer service packet enters the bidirectional processing apparatus for the first time, performs control processing or charging processing on the source end aiming at the peer to peer service packet, namely, extracts a source IP address in the packet to serve as a user identifier to perform corresponding control processing or charging processing (in this example, control processing or charging processing is performed on A), and then forwards the peer to peer service packet to the NAS device (for example, forwarding to the NAS device through a physical port 3 or VLAN 3 or Tunnel 3).
404, the NAS device receives (for example, receiving from a physical port 33 corresponding to the physical port 3, or VLAN 3, or Tunnel 3) the peer to peer service packet forwarded by the bidirectional processing apparatus, identifies that the transmission position information is third position information (for example, identifying that the physical port receiving the packet is the physical port 33, or VLAN ID carried in the packet is VLAN 3, or Tunnel receiving the packet is Tunnel 3), determines that the packet is from the bidirectional processing apparatus, the source end has been performed with control processing or charging processing and the peer to peer service packet needs to be forwarded to the bidirectional processing apparatus again, and forwards the peer to peer service packet to the bidirectional processing apparatus again (for example, forwarding to the bidirectional processing apparatus through a physical port 4, or VLAN 4 or Tunnel 4).
405, the bidirectional processing apparatus receives (for example, receiving from a physical port 44 corresponding to the physical port 4, or VLAN 4, or Tunnel 4) the peer to peer service packet forwarded by the NAS device, identifies that the transmission position information is fourth position information (for example, identifying that the physical port receiving the packet is the physical port 44, or VLAN ID carried in the packet is VILAN 4, or Tunnel receiving the packet is Tunnel 4), determines that the peer to peer service packet enters the bidirectional processing apparatus for the second time, performs control processing or charging processing on the opposite end aiming at the peer to peer service packet, namely, extracts a target IP address of the packet to serve as a user identifier to perform corresponding control processing or charging processing (in this example, control processing or charging processing is performed on B), and then forwards the peer to peer service packet to the NAS device (for example, forwarding to the NAS device through a physical port 5, or VLAN 5 or Tunnel 5).
406, the NAS device receives (for example, receiving from a physical port 55 corresponding to the physical port 5, or VLAN 5, or Tunnel 5) the peer to peer service packet forwarded by the bidirectional processing apparatus, identifies that the transmission position information is fifth position information (for example, identifying that the physical port receiving the packet is the physical port 55, or VLAN ID carried in the packet is VLAN 5, or Tunnel receiving the packet is Tunnel 5), determines that the packet is from the bidirectional processing apparatus and the source end and the opposite end have been performed with control processing or charging processing, and sends the peer to peer service packet to the opposite end, namely, the user B.
Optionally, if the NAS device determines that the packet is from the network side, namely, the packet is forwarded by another NAS device, the packet is not forwarded to the bidirectional processing apparatus and is directly sent to the opposite end (because control processing or charging processing has been performed on the side of the another NAS device).
Therefore, according to the method for peer to peer service processing of the embodiment of the present invention, the bidirectional processing apparatus is deployed to perform control processing or charging processing on the peer to peer service, the NAS device forwards the peer to peer service packet to the bidirectional processing apparatus twice, and the bidirectional processing apparatus, according to the transmission position information, performs control processing or charging processing on the source end when receiving the packet for the first time and performs control processing or charging processing on the opposite end when receiving the packet for the second time, so that the control processing or charging processing may be performed on the both sides of the peer to peer service on a condition of not performing large reformation or large upgrade on the NAS device.
Optionally, as another embodiment of the present invention, the network side communication network includes an NAS device, a network device and a bidirectional processing apparatus, such as the network architecture shown in FIG. 1c;
in this network architecture, as shown in FIG. 5A and FIG. 5B, S110 includes:

S111, the NAS device receives the service packet, and determines that the service packet is the peer to peer service packet according to the fact that the addresses of the source end and the opposite end of the service packet are the addresses in the terminal address pool;
S120 includes:
- S126, the NAS device identifies that the transmission position information is first position information, determines that the peer to peer service packet is from a terminal side, and forwards the peer to peer service packet to the network device;
- S127, the network device receives the peer to peer service packet forwarded by the NAS device, identifies that the transmission position information is second position information, determines that the peer to peer service packet is from the NAS device, and forwards the peer to peer service packet to the bidirectional processing apparatus;
- S128, the bidirectional processing apparatus receives the peer to peer service packet forwarded by the network device, identifies that the transmission position information is third position information, determines that the peer to peer service packet enters the bidirectional processing apparatus for the first time, performs control processing or charging processing on the source end aiming at the peer to peer service packet, and then forwards the peer to peer service packet to the network device;
- S129, the network device receives the peer to peer service packet forwarded by the bidirectional processing apparatus, identifies that the transmission position information is fourth position information, determines that the source end has been performed with control processing or charging processing, and forwards the peer to peer service packet to the bidirectional processing apparatus again;
- S131, the bidirectional processing apparatus receives the peer to peer service packet forwarded by the network device, identifies that the transmission position information is fifth position information, determines that the peer to peer service packet enters the bidirectional processing apparatus for the second time, performs control processing or charging processing on the opposite end aiming at the peer to peer service packet, and then forwards the peer to peer service packet to the network device;
- S132, the network device receives the peer to peer service packet forwarded by the bidirectional processing apparatus, identifies that the transmission position information is sixth position information, determines that the source end and the opposite end have been performed with control processing or charging processing, and forwards the peer to peer service packet to the NAS device;
- S 133, the NAS device receives the peer to peer service packet forwarded by the network device, identifies that the transmission position information is seventh position information, determines that the peer to peer service packet is from the network device, and sends the peer to peer service packet to the opposite end.

The embodiment of the present invention will be described below in detail in combination with FIG. 6. It should be noted that, this is only intended to help those of skilled in the art to better understand the embodiment of the present invention, rather than limiting the scope of the embodiment of the present invention.
FIG. 6 is a schematic diagram of a method in a communication system as shown in FIG. 1c. In the implementation, a bidirectional processing apparatus is deployed behind an NAS device for performing charging processing or control processing on a peer to peer service, and a network device is deployed between the NAS device and the bidirectional processing apparatus.
In the implementation, it is taken as an example that a user A initiates a peer to peer service call to a user B through the NAS device.
601, the NAS device receives (for example, receiving from a physical port 1, or VLAN1, or Tunnel 1) an IP data packet sent by A to B, and determines that the packet is a peer to peer service packet according to a fact that addresses of a source end and an opposite end of the packet are addresses in a terminal address pool.
602, the NAS device identifies that transmission position information is first position information (for example, identifying that the physical port receiving the service packet is the physical port 1, or VALN ID carried in the packet is VLAN 1, or Tunnel receiving the packet is Tunnel 1), determines that the peer to peer service packet is from a terminal side, and forwards the peer to peer service packet to the network device (for example, routing to the network device through a physical port 2 or VLAN 2 or Tunnel 2).
603, the network device receives (for example, receiving from a physical port 22 corresponding to the physical port 2, or VLAN 2, or Tunnel 2) the peer to peer service packet forwarded by the NAS device, identifies that the transmission position information is second position information, (for example, identifying that the physical port receiving the packet is the physical port 22, or VALN ID carried in the packet is VLAN 2, or Tunnel receiving the packet is Tunnel 2), determines that the peer to peer service packet is from the NAS device, and forwards the peer to peer service packet to the bidirectional processing apparatus (for example, forwarding to the bidirectional processing apparatus through a physical port 3, or VLAN 3 or Tunnel 3). Optionally, a user side IP address pool or an IP address range may be configured on the network device, and the network device judges that the packet is the peer to peer service packet according to the fact that the IPs of the source end and the opposite end are user side IP addresses.
604, the bidirectional processing apparatus receives (for example, receiving from a physical port 33 corresponding to the physical port 3, or VLAN 3, or Tunnel 3) the peer to peer service packet forwarded by the network device, identifies that the transmission position information is third position information (for example, identifying that the physical port receiving the packet is the physical port 33, or VLAN ID carried in the packet is VLAN 3, or Tunnel receiving the packet is Tunnel 3), determines that the peer to peer service packet enters the bidirectional processing apparatus for the first time, performs control processing or charging processing on the source end aiming at the peer to peer service packet, namely, extracts a source IP address in the packet to serve as a user identifier to perform corresponding control processing or charging processing (in this example, control processing or charging processing is performed on A), and then forwards the peer to peer service packet to the network device (for example, forwarding to the network device through a physical port 4 or VLAN 4 or Tunnel 4).
605, the network device receives (for example, receiving from a physical port 44 corresponding to the physical port 4, or VLAN 4, or Tunnel 4) the peer to peer service packet forwarded by the bidirectional processing apparatus, identifies that the transmission position information is fourth position information (for example, identifying that the physical port receiving the packet is the physical port 44, or VALN ID carried in the packet is VLAN 4, or Tunnel receiving the packet is Tunnel 4), determines that the packet is from the bidirectional processing apparatus, the source end has been performed with control processing or charging processing and the peer to peer service packet needs to be forwarded to the bidirectional processing apparatus again, and forwards the peer to peer service packet to the bidirectional processing apparatus again (for example, forwarding to the bidirectional processing apparatus through a physical port 5 or VLAN 5 or Tunnel 5).
606, the bidirectional processing apparatus receives (for example, receiving from a physical port 55 corresponding to the physical port 5, or VLAN 5, or Tunnel 5) the peer to peer service packet forwarded by the network device, identifies that the transmission position information is fifth position information (for example, identifying that the physical port receiving the packet is the physical port 55, or VALN ID carried in the packet is VLAN 5, or Tunnel receiving the packet is Tunnel 5), determines that the peer to peer service packet enters the bidirectional processing apparatus for the second time, performs control processing or charging processing on the opposite end aiming at the peer to peer service packet, namely, extracts a target IP address of the packet to serve as a user identifier to perform corresponding control processing or charging processing (in this example, control processing or charging processing is performed on B), and then forwards the peer to peer service packet to the network device (for example, forwarding to the network device through a physical port 6, or VLAN 6 or Tunnel 6).
607, the network device receives (for example, receiving from a physical port 66 corresponding to the physical port 6, or VLAN 6, or Tunnel 6) the peer to peer service packet forwarded by the bidirectional processing apparatus, identifies that the transmission position information is sixth position information (for example, identifying that the physical port receiving the packet is the physical port 66, or VALN ID carried in the packet is VLAN 6, or Tunnel receiving the packet is Tunnel 6), determines that the packet is from the bidirectional processing apparatus and the source end and the opposite end have been performed with control processing or charging processing, and forwards the peer to peer service packet to the NAS device (for example, forwarding to the NAS device through a physical port 7, or VLAN 7 or Tunnel 7).
608, the NAS device receives (for example, receiving from a physical port 77 corresponding to the physical port 7, or VLAN 7, or Tunnel 7) the peer to peer service packet forwarded by the network device, identifies that the transmission position information is seventh position information (for example, identifying that the physical port receiving the packet is
the physical port 77, or VALN ID carried in the packet is VLAN 7, or Tunnel receiving the packet is Tunnel 7), determines that the peer to peer service packet is from the network device, and sends the peer to peer service packet to the opposite end, namely, the user B.
Optionally, if the NAS device determines that the packet is from the network side, the packet is not forwarded to the network device (because control processing or charging processing has been performed on the side of another NAS device).
Therefore, according to the method for peer to peer service processing of the embodiment of the present invention, the bidirectional processing apparatus is deployed to perform control processing or charging processing on the peer to peer service, the network device is deployed between the NAS device and the bidirectional processing apparatus to forward the peer to peer service packet to the bidirectional processing apparatus twice, and the bidirectional processing apparatus, according to the transmission position information, performs control processing or charging processing on the source end when receiving the packet for the first time and performs control processing or charging processing on the opposite end when receiving the packet for the second time, so that the control processing or charging processing may be performed on the both sides of the peer to peer service on a condition of not performing large reformation or large upgrade on the NAS device, and moreover, the configuration pressure of the NAS device may be alleviated.
It should be understood that, in the embodiment of the present invention, the bidirectional processing apparatus may be deployed singly and may also be cooperatively arranged with a gateway device, in other words, the bidirectional processing apparatus may be a single device and may also be the gateway device.
Optionally, as another embodiment of the present invention, the network side communication network includes an NAS device, such as the network architecture shown in FIG. 1a;
in this network architecture, S120 includes:

the NAS device determines that the peer to peer service packet is from a terminal side according to the transmission position information, and performs control processing or charging processing on the source end aiming at the peer to peer service packet.

Optionally, S120 further includes:

when determining that the address of the opposite end is an address managed by the NAS device, the NAS device performs control processing or charging processing on the opposite end aiming at the peer to peer service packet, and then forwards the peer to peer service packet to the opposite end, or when determining that the address of the opposite end is an address managed by another NAS device, forwards the peer to peer service packet to the another NAS device.

Specifically, in the embodiment of the present invention, in order to perform control processing or charging processing on both sides of the peer to peer service, the existing NAS device is reformed. The NAS device receives the service packet, determines that the service packet is the peer to peer service packet according to the fact that the addresses of the source end and the opposite end of the service packet are the addresses in the terminal address pool, identifies the transmission position information of the peer to peer service packet, determines whether the packet is from the terminal side according to the transmission position information, if the packet is from the terminal side, performs control processing or charging processing on the source end, namely, extracts the source IP address of the packet to serve as the user identifier to perform the control processing or charging processing, and judges whether the address of the opposite end is the address managed by the NAS device, if the address of the opposite end is the address managed by the NAS device, performs the control processing or charging processing on the opposite end, namely, extracts the target IP address of the packet to serve as the user identifier to perform the control processing or charging processing, and then forwards the packet to the opposite end, or if the address of the opposite end is the address managed by another NAS device, forwards the packet to the another NAS device.
Optionally, S120 includes:

the NAS device determines that the peer to peer service packet is from a network side according to the transmission position information, performs control processing or charging processing on the opposite end aiming at the peer to peer service packet, and then forwards the peer to peer service packet to the opposite end.

Specifically, if the packet is from the network side, namely, the packet is forwarded by another NAS devices, because the source end has been performed with control processing or charging processing on the side of the another NAS devices, control processing or charging processing is only performed on the opposite end of the packet, namely, the target IP address of the packet is extracted to serve as the user identifier to perform the control processing or charging processing, and then the packet is forwarded to the opposite end.
Therefore, the method for peer to peer service processing of the embodiment of the present invention, by respectively performing control processing or charging processing on the source end and the opposite end by the NAS device, may achieve performing control processing or charging processing on the both sides of the peer to peer service.
It should be understood that, in various embodiments of the present invention, the size of the serial numbers of the above-mentioned processes does not mean the execution order, the execution order of the processes should be determined by the functions and internal logics thereof, and should not constitute any limit to the implementation processes of the embodiments of the present invention.
The method for peer to peer service processing according to the embodiment of the present invention has been described above in detail in combination with FIG. 1 to FIG. 6, the network side communication network, the NAS device and the bidirectional processing apparatus for a peer to peer service according to the embodiment of the present invention will be described below in combination with FIG. 7 to FIG. 10.
FIG. 7 shows a schematic block diagram of a network side communication network 200 according to an embodiment of the present invention. As shown in FIG. 7, the network side communication network 200 includes a NAS device 210 and a bidirectional processing apparatus 220, wherein the NAS device 210 is in communication connection with the bidirectional processing apparatus 220;
the NAS device 210 is configured to receive a service packet, determine that the service packet is a peer to peer service packet according to a fact that addresses of a source end and an opposite end of the service packet are addresses in a terminal address pool, identify transmission position information of the peer to peer service packet, and forward the peer to peer service packet according to the transmission position information, wherein the transmission position information includes information of a physical port, a virtual local area network or a tunnel which transmits the peer to peer service packet; and
the bidirectional processing apparatus 220 is configured to identify the transmission position information, and perform control processing or charging processing on one or both of the source end and the opposite end aiming at the peer to peer service packet, according to the transmission position information.
The network side communication network of the embodiment of the present invention, by identifying the transmission position information of the peer to peer service packet, and performing control processing or charging processing on one or both of the source end and the opposite end aiming at the peer to peer service packet, according to the transmission position information, may flexibly or efficiently achieve performing control processing or charging processing on users of a peer to peer service.
Optionally, the NAS device 210 is specifically configured to identify that the transmission position information is first position information, determine that the peer to peer service packet is from a terminal side, and forward the peer to peer service packet to the bidirectional processing apparatus, or receive the peer to peer service packet forwarded by the bidirectional processing apparatus, identify that the transmission position information is third position information, determine that the source end has been performed with control processing or charging processing, and forward the peer to peer service packet to the bidirectional processing apparatus again, or receive the peer to peer service packet forwarded by the bidirectional processing apparatus, identify that the transmission position information is fifth position information, determine that the source end and the opposite end have been performed with control processing or charging processing, and send the peer to peer service packet to the opposite end;
the bidirectional processing apparatus 220 includes:

a receiving module 221, configured to receive the peer to peer service packet forwarded by the NAS device;
an identifying module 222, configured to identify that the transmission position information is second position information, determine that the peer to peer service packet enters the bidirectional processing apparatus for the first time, and trigger a first sub-processing module 223 of the bidirectional processing apparatus, or identify that the transmission position information is fourth position information, determine that the peer to peer service packet enters the bidirectional processing apparatus for the second time, and trigger a second sub-processing module 224 of the bidirectional processing apparatus;
the first sub-processing module 223, configured to perform control processing or charging processing on the source end aiming at the peer to peer service packet, and then forward the peer to peer service packet to the NAS device;
the second sub-processing module 224, configured to perform control processing or charging processing on the opposite end aiming at the peer to peer service packet, and then forward the peer to peer service packet to the NAS device.

The network side communication network 200 according to the embodiment of the present invention may correspond to the system as shown in FIG. 1b, and the above-mentioned and other operations and/or functions of the modules in the network side communication network 200 are respectively used for achieving corresponding flows of the methods in FIG. 2 to FIG. 4, and for concision, will not be repeated redundantly herein.
According to the network side communication network of the embodiment of the present invention, the bidirectional processing apparatus is deployed to perform control processing or charging processing on the peer to peer service, the NAS device forwards the peer to peer service packet to the bidirectional processing apparatus twice, and the bidirectional processing apparatus, according to the transmission position information, performs control processing or charging processing on the source end when receiving the packet for the first time and performs control processing or charging processing on the opposite end when receiving the packet for the second time, so that the control processing or charging processing may be performed on the both sides of the peer to peer service on a condition of not performing large reformation or large upgrade on the NAS device.
FIG. 8 shows a schematic block diagram of a network side communication network 300 according to an embodiment of the present invention. As shown in FIG. 8, the network side communication network 300 includes an NAS device 310, a network device 320 and a bidirectional processing apparatus 330, wherein the bidirectional processing apparatus 330 is in communication connection with the NAS device 310 through the network device 320;
the NAS device 310 is configured to receive a service packet, determine that the service packet is a peer to peer service packet according to a fact that addresses of a source end and an opposite end of the service packet are addresses in a terminal address pool, identify transmission position information of the peer to peer service packet, and forward the peer to peer service packet according to the transmission position information, wherein the transmission position information includes information of a physical port, a virtual local area network or a tunnel which transmits the peer to peer service packet;
the network device 320 is configured to identify the transmission position information and forward the peer to peer service packet according to the transmission position information; and
the bidirectional processing apparatus 330 is configured to identify the transmission position information, and perform control processing or charging processing on one or both of the source end and the opposite end aiming at the peer to peer service packet according to the transmission position information.
The network side communication network of the embodiment of the present invention, by identifying the transmission position information of the peer to peer service packet, and performing control processing or charging processing on one or both of the source end and the opposite end aiming at the peer to peer service packet, according to the transmission position information, may more flexibly or efficiently achieve performing control processing or charging processing on users of a peer to peer service.
Optionally, the NAS device 310 is specifically configured to identify that the transmission position information is first position information, determine that the peer to peer service packet is from a terminal side, and forward the peer to peer service packet to the network device, or receive the peer to peer service packet forwarded by the network device, identify that the transmission position information is seventh position information, determine that the peer to peer service packet is from the network device and send the peer to peer service packet to the opposite end;
the network device 320 is specifically configured to receive the peer to peer service packet forwarded by the NAS device, identify that the transmission position information is second position information, determine that the peer to peer service packet is from the NAS device, and forward the peer to peer service packet to the bidirectional processing apparatus, or receive the peer to peer service packet forwarded by the bidirectional processing apparatus, identify that the transmission position information is fourth position information, determine that the source end has been performed with control processing or charging processing, and forward the peer to peer service packet to the bidirectional processing apparatus again, or receive the peer to peer service packet forwarded by the bidirectional processing apparatus, identify that the transmission position information is sixth position information, determine that the source end and the opposite end have been performed with control processing or charging processing, and forward the peer to peer service packet to the NAS device; the bidirectional processing apparatus 330 includes:

a receiving module 331, configured to receive the peer to peer service packet forwarded by the network device;
an identifying module 332, configured to identify that the transmission position information is third position information, determine that the peer to peer service packet enters the bidirectional processing apparatus for the first time, and trigger a first sub-processing module 333 of the bidirectional processing apparatus, or identify that the transmission position information is fifth position information, determine that the peer to peer service packet enters the bidirectional processing apparatus for the second time, and trigger a second sub-processing module 334 of the bidirectional processing apparatus;
the first sub-processing module 333, configured to perform control processing or charging processing on the source end aiming at the peer to peer service packet, and then forward the peer to peer service packet to the network device;
the second sub-processing module 334, configured to perform control processing or charging processing on the opposite end aiming at the peer to peer service packet, and then forward the peer to peer service packet to the network device.

The network side communication network 300 according to the embodiment of the present invention may correspond to the system as shown in FIG. 1c, and the above-mentioned and other operations and/or functions of the modules in the network side communication network 300 are respectively used for achieving corresponding flows of the methods in FIG. 2, FIG. 5 and FIG. 6, and for concision, will not be repeated redundantly herein.
According to the network side communication network of the embodiment of the present invention, the bidirectional processing apparatus is deployed to perform control processing or charging processing on the peer to peer service, the network device is deployed between the NAS device and the bidirectional processing apparatus to forward the peer to peer service packet to the bidirectional processing apparatus twice, and the bidirectional processing apparatus, according to the transmission position information, performs control processing or charging processing on the source end when receiving the packet for the first time and performs control processing or charging processing on the opposite end when receiving the packet for the second time, so that the control processing or charging processing may be performed on both sides of the peer to peer service on a condition of not performing large reformation or large upgrade on the NAS device, and moreover, the configuration pressure of the NAS device may be alleviated.
FIG. 9 is a schematic block diagram of an NAS device 400 according to an embodiment of the present invention. As shown in FIG. 9, the NAS device 400 includes:

a service packet processing module 410, configured to receive a service packet, and determine that the service packet is a peer to peer service packet according to a fact that addresses of a source end and an opposite end of the service packet are addresses in a terminal address pool;
an identifying module 420, configured to identify transmission position information of the peer to peer service packet, wherein the transmission position information includes information of a physical port, a virtual local area network or a tunnel which transmits the peer to peer service packet; and
a processing module 430, configured to perform control processing or charging processing on one or both of the source end and the opposite end aiming at the peer to peer service packet, according to the transmission position information identified by the identifying module 420.

Optionally, the processing module 430 is specifically configured to determine that the peer to peer service packet is from a terminal side according to the transmission position information, and perform control processing or charging processing on the source end aiming at the peer to peer service packet.
Optionally, the processing module 430 is specifically configured to, when determining that the address of the opposite end is an address managed by the NAS device, perform control processing or charging processing on the opposite end aiming at the peer to peer service packet, and then forward the peer to peer service packet to the opposite end, or when determining that the address of the opposite end is an address managed by another NAS device, forward the peer to peer service packet to the another NAS device.
Optionally, the processing module 430 is specifically configured to determine that the peer to peer service packet is from a network side according to the transmission position information, perform control processing or charging processing on the opposite end aiming at the peer to peer service packet, and then forward the peer to peer service packet to the opposite end.
The NAS device of the embodiment of the present invention, by respectively performing control processing or charging processing on the source end and the opposite end, may achieve performing control processing or charging processing on both sides of a peer to peer service.
FIG. 10 is a schematic block diagram of a bidirectional processing apparatus 500 for a peer to peer service according to an embodiment of the present invention. As shown in FIG. 10, the bidirectional processing apparatus 500 includes:

a receiving module 510, configured to receive a peer to peer service packet forwarded by a network side device;
an identifying module 520, configured to identify transmission position information of the peer to peer service packet according to the peer to peer service packet received by the receiving module 510, wherein the transmission position information includes information of a physical port, a virtual local area network or a tunnel which transmits the peer to peer service packet; and
a processing module 530, configured to perform control processing or charging processing on one or both of a source end and an opposite end aiming at the peer to peer service packet, according to the transmission position information identified by the identifying module 520, and then forward the peer to peer service packet to the network side device.

Optionally, the identifying module 520 is specifically configured to identify the transmission position information according to the peer to peer service packet received by the receiving module 510, determine that the peer to peer service packet enters the bidirectional processing apparatus for the first time, and trigger a first sub-processing module 531 in the processing module 530, or identify the transmission position information according to the peer to peer service packet received by the receiving module 510, determine that the peer to peer service packet enters the bidirectional processing apparatus for the second time, and trigger a second sub-processing module 532 in the processing module 530;
the processing module 530 specifically includes:

the first sub-processing module 531, configured to perform control processing or charging processing on the source end aiming at the peer to peer service packet, and then forward the peer to peer service packet to the network side device;
the second sub-processing module 532, configured to perform control processing or charging processing on the opposite end aiming at the peer to peer service packet, and then forward the peer to peer service packet to the network side device.

Optionally, the bidirectional processing apparatus 500 is located in a network access server NAS device and is in communication connection with a service packet processing module in the NAS device, and the network side device is the service packet processing module in the NAS device.
Optionally, the bidirectional processing apparatus 500 is in communication connection with a NAS device, and the network side device is the NAS device.
Optionally, the bidirectional processing apparatus 500 is in communication connection with a NAS device through a network device, and the network side device is the network device.
The bidirectional processing apparatus for a peer to peer service of the embodiment of the present invention, by identifying the transmission position information of the peer to peer service packet, and performing control processing or charging processing on one or both of the source end and the opposite end aiming at the peer to peer service packet, according to the transmission position information, may achieve performing control processing or charging processing on both sides of a peer to peer service.
It should be understood that in the embodiments of the present invention, the term "and/or" merely describes an association relationship of associated objects and expresses that three relationships may exist. For example, A and/or B may express the following three conditions: A singly exists, A and B simultaneously exist and B singly exists. In addition, in this paper, the character "/" generally expresses an "or" relationship of front and back associated objects.
Those of ordinary skill in the art may be aware that, units and algorithm steps of the examples described in the embodiments disclosed in this paper may be implemented by electronic hardware, computer software, or a combination of the two, in order to clearly illustrate the interchangeability of hardware and software, the composition and the steps of the examples have been described generally in the above-mentioned illustration according to functions. Whether these functions are implemented in the form of hardware or software depends on specific applications and design constraint conditions of the technical solutions. Those skilled may implement the described functions by using different methods for each specific application, but this implementation should not be considered beyond the scope of the present invention.
Those skilled in the art to which the present invention pertains may clearly understand that, for convenience and concision of description, the specific working processes of the system, apparatus and units described above may refer to corresponding processes in the foregoing method embodiments, and will not be repeated redundantly herein.
In the several embodiments provided in the present application, it should be understood that, the disclosed system, apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are merely exemplary, e.g., the division of the units is only a logic function division, other division manners may exist in practical implementation, for example, a plurality of units or components may be combined or integrated to another system, or some features may be omitted or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection of devices or units through some interfaces, and may be in electrical, mechanical or other forms.
The units described as separate components may be separated physically or not, components displayed as units may be physical units or not, namely, may be located in one place, or may be distributed on a plurality of network units. Apart of or all of the units may be selected to achieve the purposes of the technical solutions in the embodiments of the present invention according to actual demands.
In addition, the functional units in the embodiments of the present invention may be integrated in a processing unit, or the units singly exist physically, or two or more units are integrated in one unit. The above-mentioned integrated unit may be implemented in the form of hardware and also be implemented in the form a software functional unit.
If the integrated unit is implemented in the form of the software functional unit and is sold or used as an independent product, it may be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present invention substantially, or the part contributing to the prior art, or all or a part of the technical solutions may be implemented in the form of a software product, the computer software product is stored in a storage medium, and includes a plurality of instructions enabling computer equipment (may be a personal computer, a server, or a network device, etc.) to execute all or a part of the steps of the methods in the embodiments of the present invention. The foregoing storage medium includes a variety of media capable of storing program codes, such as a USB disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk, an optical disk or the like.
The foregoing descriptions are merely specific implementations of the present invention, rather than limiting the protection scope of the present invention. Any skilled one who is familiar with this art could readily think of various equivalent modifications or substitutions within the disclosed technical scope of the present invention, and these modifications or substitutions shall fall within the protection scope of the present invention. Accordingly, the protection scope of the claims should prevail over the protection scope of the present invention.

Claims

A method for peer to peer service processing, comprising:
receiving, by a network side communication network, a service packet, and determining that the service packet is a peer to peer service packet according to a fact that addresses of a source end and an opposite end of the service packet are addresses in a terminal address pool; and

identifying, by the network side communication network, transmission position information of the peer to peer service packet, and performing control processing or charging processing on one or both of the source end and the opposite end aiming at the peer to peer service packet, according to the transmission position information, wherein the transmission position information comprises information of a physical port, a virtual local area network or a tunnel which transmits the peer to peer service packet.
The method of claim 1, wherein the network side communication network comprises a network access server NAS device and a bidirectional processing apparatus;
the receiving, by the network side communication network, the service packet, and the determining that the service packet is the peer to peer service packet according to the fact that the addresses of the source end and the opposite end of the service packet are the addresses in the terminal address pool, comprise:
receiving, by the NAS device, the service packet, and determining that the service packet is the peer to peer service packet according to the fact that the addresses of the source end and the opposite end of the service packet are the addresses in the terminal address pool;

the identifying, by the network side communication network, the transmission position information of the peer to peer service packet, and the performing control processing or charging processing on one or both of the source end and the opposite end aiming at the peer to peer service packet, according to the transmission position information, comprise:

identifying, by the NAS device, that the transmission position information is first position information, determining that the peer to peer service packet is from a terminal side, and forwarding the peer to peer service packet to the bidirectional processing apparatus;

receiving, by the bidirectional processing apparatus, the peer to peer service packet forwarded by the NAS device, identifying that the transmission position information is second position information, determining that the peer to peer service packet enters the bidirectional processing apparatus for the first time, performing control processing or charging processing on the source end aiming at the peer to peer service packet, and then forwarding the peer to peer service packet to the NAS device;

receiving, by the NAS device, the peer to peer service packet forwarded by the bidirectional processing apparatus, identifying that the transmission position information is third position information, determining that the source end has been performed with control processing or charging processing, and forwarding the peer to peer service packet to the bidirectional processing apparatus again;

receiving, by the bidirectional processing apparatus, the peer to peer service packet forwarded by the NAS device, identifying that the transmission position information is fourth position information, determining that the peer to peer service packet enters the bidirectional processing apparatus for the second time, performing control processing or charging processing on the opposite end aiming at the peer to peer service packet, and then forwarding the peer to peer service packet to the NAS device;

receiving, by the NAS device, the peer to peer service packet forwarded by the bidirectional processing apparatus, identifying that the transmission position information is fifth position information, determining that the source end and the opposite end have been performed with control processing or charging processing, and sending the peer to peer service packet to the opposite end.
The method of claim 1, wherein the network side communication network comprises an NAS device, a network device and a bidirectional processing apparatus;
the receiving, by the network side communication network, the service packet, and the determining that the service packet is the peer to peer service packet according to the fact that the addresses of the source end and the opposite end of the service packet are the addresses in the terminal address pool, comprise:
receiving, by the NAS device, the service packet, and determining that the service packet is the peer to peer service packet according to the fact that the addresses of the source end and the opposite end of the service packet are the addresses in the terminal address pool;

the identifying, by the network side communication network, the transmission position information of the peer to peer service packet, and the performing control processing or charging processing on one or both of the source end and the opposite end aiming at the peer to peer service packet, according to the transmission position information, comprise:

identifying, by the NAS device, that the transmission position information is first position information, determining that the peer to peer service packet is from a terminal side, and forwarding the peer to peer service packet to the network device;

receiving, by the network device, the peer to peer service packet forwarded by the NAS device, identifying that the transmission position information is second position information, determining that the peer to peer service packet is from the NAS device, and forwarding the peer to peer service packet to the bidirectional processing apparatus;

receiving, by the bidirectional processing apparatus, the peer to peer service packet forwarded by the network device, identifying that the transmission position information is third position information, determining that the peer to peer service packet enters the bidirectional processing apparatus for the first time, performing control processing or charging processing on the source end aiming at the peer to peer service packet, and then forwarding the peer to peer service packet to the network device;

receiving, by the network device, the peer to peer service packet forwarded by the bidirectional processing apparatus, identifying that the transmission position information is fourth position information, determining that the source end has been performed with control processing or charging processing, and forwarding the peer to peer service packet to the bidirectional processing apparatus again;

receiving, by the bidirectional processing apparatus, the peer to peer service packet forwarded by the network device, identifying that the transmission position information is fifth position information, determining that the peer to peer service packet enters the bidirectional processing apparatus for the second time, performing control processing or charging processing on the opposite end aiming at the peer to peer service packet, and then forwarding the peer to peer service packet to the network device;

receiving, by the network device, the peer to peer service packet forwarded by the bidirectional processing apparatus, identifying that the transmission position information is sixth position information, determining that the source end and the opposite end have been performed with control processing or charging processing, and forwarding the peer to peer service packet to the NAS device;

receiving, by the NAS device, the peer to peer service packet forwarded by the network device, identifying that the transmission position information is seventh position information, determining that the peer to peer service packet is from the network device, and sending the peer to peer service packet to the opposite end.
The method of claim 1, wherein the network side communication network comprises an NAS device;
the performing, by the network side communication network, control processing or charging processing on one or both of the source end and the opposite end aiming at the peer to peer service packet, according to the transmission position information, comprises:
determining, by the NAS device, that the peer to peer service packet is from a terminal side according to the transmission position information, and performing control processing or charging processing on the source end aiming at the peer to peer service packet.
The method of claim 4, wherein the performing, by the network side communication network, control processing or charging processing on one or both of the source end and the opposite end aiming at the peer to peer service packet, according to the transmission position information, further comprises:
when determining that the address of the opposite end is an address managed by the NAS device, performing, by the NAS device, control processing or charging processing on the opposite end aiming at the peer to peer service packet, and then forwarding the peer to peer service packet to the opposite end, or when determining that the address of the opposite end is an address managed by another NAS device, forwarding the peer to peer service packet to the another NAS device.
The method of claim 1, wherein the network side communication network comprises an NAS device;
the performing, by the network side communication network, control processing or charging processing on one or both of the source end and the opposite end aiming at the peer to peer service packet, according to the transmission position information, comprises:
determining, by the NAS device, that the peer to peer service packet is from a network side according to the transmission position information, performing control processing or charging processing on the opposite end aiming at the peer to peer service packet, and then forwarding the peer to peer service packet to the opposite end.
A network side communication network, comprising: a network access server NAS device and a bidirectional processing apparatus, wherein the NAS device is in communication connection with the bidirectional processing apparatus;
the NAS device is configured to receive a service packet, determine that the service packet is a peer to peer service packet according to a fact that addresses of a source end and an opposite end of the service packet are addresses in a terminal address pool, identify transmission position information of the peer to peer service packet, and forward the peer to peer service packet according to the transmission position information, wherein the transmission position information comprises information of a physical port, a virtual local area network or a tunnel which transmits the peer to peer service packet; and
the bidirectional processing apparatus is configured to identify the transmission position information, and perform control processing or charging processing on one or both of the source end and the opposite end aiming at the peer to peer service packet, according to the transmission position information.
The network side communication network of claim 7, wherein the NAS device is specifically configured to identify that the transmission position information is first position information, determine that the peer to peer service packet is from a terminal side, and forward the peer to peer service packet to the bidirectional processing apparatus, or receive the peer to peer service packet forwarded by the bidirectional processing apparatus, identify that the transmission position information is third position information, determine that the source end has been performed with control processing or charging processing, and forward the peer to peer service packet to the bidirectional processing apparatus again, or receive the peer to peer service packet forwarded by the bidirectional processing apparatus, identify that the transmission position information is fifth position information, determine that the source end and the opposite end have been performed with control processing or charging processing, and send the peer to peer service packet to the opposite end;
the bidirectional processing apparatus comprises:
a receiving module, configured to receive the peer to peer service packet forwarded by the NAS device;

an identifying module, configured to identify that the transmission position information is second position information, determine that the peer to peer service packet enters the bidirectional processing apparatus for the first time, and trigger a first sub-processing module of the bidirectional processing apparatus, or identify that the transmission position information is fourth position information, determine that the peer to peer service packet enters the bidirectional processing apparatus for the second time, and trigger a second sub-processing module of the bidirectional processing apparatus;

the first sub-processing module, configured to perform control processing or charging processing on the source end aiming at the peer to peer service packet, and then forward the peer to peer service packet to the NAS device;

the second sub-processing module, configured to perform control processing or charging processing on the opposite end aiming at the peer to peer service packet, and then forward the peer to peer service packet to the NAS device.
A network side communication network, comprising: a network access server NAS device, a network device and a bidirectional processing apparatus, wherein the bidirectional processing apparatus is in communication connection with the NAS device through the network device;
the NAS device is configured to receive a service packet, determine that the service packet is a peer to peer service packet according to a fact that addresses of a source end and an opposite end of the service packet are addresses in a terminal address pool, identify transmission position information of the peer to peer service packet, and forward the peer to peer service packet according to the transmission position information, wherein the transmission position information comprises information of a physical port, a virtual local area network or a tunnel which transmits the peer to peer service packet;
the network device is configured to identify the transmission position information and forward the peer to peer service packet according to the transmission position information; and
the bidirectional processing apparatus is configured to identify the transmission position information, and perform control processing or charging processing on one or both of the source end and the opposite end aiming at the peer to peer service packet, according to the transmission position information.
The network side communication network of claim 9, wherein the NAS device is specifically configured to identify that the transmission position information is first position information, determine that the peer to peer service packet is from a terminal side, and forward the peer to peer service packet to the network device, or receive the peer to peer service packet forwarded by the network device, identify that the transmission position information is seventh position information, determine that the peer to peer service packet is from the network device and send the peer to peer service packet to the opposite end;
the network device is specifically configured to receive the peer to peer service packet forwarded by the NAS device, identify that the transmission position information is second position information, determine that the peer to peer service packet is from the NAS device, and forward the peer to peer service packet to the bidirectional processing apparatus, or receive the peer to peer service packet forwarded by the bidirectional processing apparatus, identify that the transmission position information is fourth position information, determine that the source end has been performed with control processing or charging processing, and forward the peer to peer service packet to the bidirectional processing apparatus again, or receive the peer to peer service packet forwarded by the bidirectional processing apparatus, identify that the transmission position information is sixth position information, determine that the source end and the opposite end have been performed with control processing or charging processing, and forward the peer to peer service packet to the NAS device;
the bidirectional processing apparatus comprises:
a receiving module, configured to receive the peer to peer service packet forwarded by the network device;

an identifying module, configured to identify that the transmission position information is third position information, determine that the peer to peer service packet enters the bidirectional processing apparatus for the first time, and trigger a first sub-processing module of the bidirectional processing apparatus, or identify that the transmission position information is fifth position information, determine that the peer to peer service packet enters the bidirectional processing apparatus for the second time, and trigger a second sub-processing module of the bidirectional processing apparatus;

the first sub-processing module, configured to perform control processing or charging processing on the source end aiming at the peer to peer service packet, and then forward the peer to peer service packet to the network device;

the second sub-processing module, configured to perform control processing or charging processing on the opposite end aiming at the peer to peer service packet, and then forward the peer to peer service packet to the network device.
A network access server NAS device, comprising:
a service packet processing module, configured to receive a service packet, and determine that the service packet is a peer to peer service packet according to a fact that addresses of a source end and an opposite end of the service packet are addresses in a terminal address pool;

an identifying module, configured to identify transmission position information of the peer to peer service packet, wherein the transmission position information comprises information of a physical port, a virtual local area network or a tunnel which transmits the peer to peer service packet; and

a processing module, configured to perform control processing or charging processing on one or both of the source end and the opposite end aiming at the peer to peer service packet, according to the transmission position information identified by the identifying module.
The NAS device of claim 11, wherein the processing module is specifically configured to determine that the peer to peer service packet is from a terminal side according to the transmission position information, and perform control processing or charging processing on the source end aiming at the peer to peer service packet.
The NAS device of claim 12, wherein the processing module is specifically configured to, when determining that the address of the opposite end is an address managed by the NAS device, perform control processing or charging processing on the opposite end aiming at the peer to peer service packet, and then forward the peer to peer service packet to the opposite end, or when determining that the address of the opposite end is an address managed by another NAS device, forward the peer to peer service packet to the another NAS device.
The NAS device of claim 11, wherein the processing module is specifically configured to determine that the peer to peer service packet is from a network side according to the transmission position information, perform control processing or charging processing on the opposite end aiming at the peer to peer service packet, and then forward the peer to peer service packet to the opposite end.
A bidirectional processing apparatus for a peer to peer service, comprising:
a receiving module, configured to receive a peer to peer service packet forwarded by a network side device;

an identifying module, configured to identify transmission position information of the peer to peer service packet according to the peer to peer service packet received by the receiving module, wherein the transmission position information comprises information of a physical port, a virtual local area network or a tunnel which transmits the peer to peer service packet; and

a processing module, configured to perform control processing or charging processing on one or both of a source end and an opposite end aiming at the peer to peer service packet, according to the transmission position information identified by the identifying module, and then forward the peer to peer service packet to the network side device.
The bidirectional processing apparatus of claim 15, wherein the identifying module is specifically configured to identify the transmission position information according to the peer to peer service packet received by the receiving module, determine that the peer to peer service packet enters the bidirectional processing apparatus for the first time, and trigger a first sub-processing module in the processing module, or identify the transmission position information according to the peer to peer service packet received by the receiving module, determine that the peer to peer service packet enters the bidirectional processing apparatus for the second time, and trigger a second sub-processing module in the processing module;
the processing module specifically comprises:
the first sub-processing module, configured to perform control processing or charging processing on the source end aiming at the peer to peer service packet, and then forward the peer to peer service packet to the network side device;

the second sub-processing module, configured to perform control processing or charging processing on the opposite end aiming at the peer to peer service packet, and then forward the peer to peer service packet to the network side device.
The bidirectional processing apparatus of claim 15 or 16, wherein the bidirectional processing apparatus is located in a network access server NAS device and is in communication connection with a service packet processing module in the NAS device, and the network side device is the service packet processing module in the NAS device.
The bidirectional processing apparatus of claim 15 or 16, wherein the bidirectional processing apparatus is in communication connection with a NAS device, and the network side device is the NAS device.
The bidirectional processing apparatus of claim 15 or 16, wherein the bidirectional processing apparatus is in communication connection with a NAS device through a network device, and the network side device is the network device.